fix: fix ShowPartitions error, milvus-io#246

Author: matrixji

src/impl/MilvusClientImpl.cpp

@@ -423,8 +423,12 @@ MilvusClientImpl::ShowPartitions(const std::string& collection_name, const std::
             partitions_info.reserve(count);
         }
         for (int i = 0; i < count; ++i) {
+            int inmemory_percentage = 0;
+            if (response.inmemory_percentages_size() > i) {
+                inmemory_percentage = response.inmemory_percentages(i);
+            }
             partitions_info.emplace_back(response.partition_names(i), response.partitionids(i),
-                                         response.created_timestamps(i), response.inmemory_percentages(i));
+                                         response.created_timestamps(i), inmemory_percentage);
         }
     };
 

test/st/TestCollection.cpp

@@ -56,6 +56,11 @@ TEST_P(MilvusServerTestCollection, CreateAndDeleteCollection) {
     EXPECT_EQ(collection_infos.front().MemoryPercentage(), 0);
     EXPECT_EQ(collection_infos.front().Name(), "Foo");
 
+    // test for https://github.com/milvus-io/milvus-sdk-cpp/issues/246
+    milvus::PartitionsInfo partitionsInfo{};
+    status = client_->ShowPartitions("Foo", std::vector<std::string>{}, partitionsInfo);
+    EXPECT_TRUE(status.IsOk());
+
     names.emplace_back("Foo");
     collection_infos.clear();
     status = client_->LoadCollection("Foo");